专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4345093A Ethylene recovery from ethyl acrylate process 失效
标题翻译：从丙烯酸乙酯工艺回收乙烯
公开(公告)号：US4345093A
公开(公告)日：1982-08-17
申请号：US278547
申请日：1981-06-29
申请人： Howard L. Pilat , Jerry D. Moore , Jack Chosnek
发明人： Howard L. Pilat , Jerry D. Moore , Jack Chosnek
IPC分类号： C07C69/54 , B01J27/00 , C07C67/04 , C07C139/08
CPC分类号： C07C67/04
摘要： Unreacted ethylene contained in a gaseous light ends stream derived from a process for the production of ethyl acrylate from ethylene and acrylic acid utilizing a sulfuric acid catalyst, is recovered by intimately contacting, under controlled conditions of temperature and pressure, the light ends stream with the liquid sulfuric acid catalyst make-up stream which is passed to the ethyl acrylate process. Upon contact of the light ends stream with the sulfuric acid make-up stream, the ethylene reacts with sulfuric acid to form ethyl hydrogen sulfate and diethyl sulfate, both of which remain in solution in the sulfuric acid which is then passed to the ethyl acrylate process as a source of make-up sulfuric acid. Sulfur dioxide contained in the vent-gas stream is not absorbed into the sulfuric acid, and therefore not recycled to the ethyl acrylate process.
摘要翻译：通过使用硫酸催化剂从乙烯和丙烯酸生产丙烯酸乙酯的方法得到的气态轻质末端物流中所含的未反应的乙烯通过在温度和压力的受控条件下紧密接触轻回收物流与液体硫酸催化剂补充流，其通过丙烯酸乙酯工艺。当轻馏分物流与硫酸补充物接触时，乙烯与硫酸反应形成硫酸氢乙酯和硫酸二乙酯，两者均保留在硫酸溶液中，然后通入丙烯酸乙酯工艺作为补充硫酸的来源。废气流中所含的二氧化硫不会吸收到硫酸中，因此不会再循环到丙烯酸乙酯工艺中。

IPRDB

热门服务

关于我们

友情链接

联系方式